GO SILURID.E. 



spine ; it is armed interiorly \vith strong spines curved backwards. 

 Ventral inserted below the hinder dorsal rays, half as long as the 

 head. Sides uniform silvery. 

 Madras Presidency. 



a-b. Three and a half inches long. Presented by Captain Mitchell. 



4. Pseudeutropius megalops. 

 B. 5. D. 1/G. A. 41. P. 1/11. V. 6. 



The height of the body is one-sixth of the total length (without 

 caudal), the length of the head one-hfth ; the greatest width of the 

 head is three-fifths of its length. The upper jaw overlaps the lower ; 

 the cleft of the mouth is two-thirds as long as broad. The teeth 

 in the jaws form rather narrow bands, — those of the vomer two qua- 

 drangular patches, which are separated from each other by a linear 

 groove; the palatine teeth form a cuneiform band which is sub- 

 continuous with the vomerine teeth. The nasal barbels extend to 

 behind the eye ; those of the maxillaries are slightly compressed, 

 and situated below the orbit and base of the pectoral, when in repose, 

 and extend beyond the origin of the anal. The mandibulary barbels 

 are inserted immediately behind the front margin of the lower jaw, 

 nearly in the same transverse line, and are of equal length, extend- 

 ing beyond the root of the pectoral. The eye is situated behind the 

 angle of the mouth, and partly at the lower side of the head ; it is 

 provided with a broad eyelid, and its diameter is one-fourth of 

 the length of the head. The dorsal fin is situated entirely before 

 the ventral ; its height is less than the length of the head, and its 

 spine is not much shorter than the first soft ray; the spine is of 

 moderate strength, finely seiTated in front and behind. The distance 

 between anal and caudal fins is more than the depth of the hinder 

 part of the tail. Caudal fin with the lobes pointed, its length being 

 one-fifth of the total. Pectoral spine stronger than that of the dorsal 

 fin, as long as the head, extending to, or nearly to, the ventral, finely 

 serrated exteriorly and interiorly. Ventral small, not quite half as 

 long as the head. Silvery, dark on the back ; a blackish spot corre- 

 sponds to the seat of the air-bladder. 



Central India. 



a. Six inches long. Godaveri at Mahadespur, Orissa. Prom the 

 Collection of Messrs. v. Schlagintweit. 



5. Pseudeutropius longimanus. 



D. 1/8. A. ca. 54. P. ±. V. 6. 



The bands of teeth in the jaws are rather narrower than those on 

 the palate ; the vomerine band is interrupted in the middle, each half 

 being suljcontinuous with the palatine band. The nasal barbels are 

 half as long as the head ; those of the maxillaries extend to, or beyond, 

 the origin of the anal ; the four mandibulary barbels are inserted in 

 a straight transverse line, and as long as, or longer than, the head. 



